check_mattermost doesn't show actual patched version

[muristan]

Mattermost Team Edition
Mattermost: Vers. 5.28.1 Database schema version: 5.28.0

curl -i https://mm.beispiel.de 2>/dev/null | grep 'X-Version-Id' | grep -oE '([0-9]{1,}.)+[0-9]{1,}'
5.28.0.5.28.1.46

This is probably a problem of the mattermost server self. The desctop client shows the actual version. But the curl command displays X-Version-Id: 5.28.0.5.28.1
curl displays first database schema version followed by the build number.

This results in icinga2 warning messages if -p (mattermost_patch) is enabled - nevertheless the patch is installed.

Howto correct the line
curl -i https://mm.beispiel.de 2>/dev/null | grep 'X-Version-Id' | grep -oE '([0-9]{1,}.)+[0-9]{1,}'
to show just the build number?

[muristan]

I replaced the line
m_version="$(curl -i $MATTERMOST_URL 2>/dev/null | grep 'X-Version-Id' | grep -oE '([0-9]{1,}.)+[0-9]{1,}')"
with
TOKEN=$(curl -i -d '{"login_id":"user","password":"secret"}' https://mm.beispiel.de:/api/v4/users/login 2>/dev/null | grep Token | grep -oP '(?<=Token: )[ A-Za-z0-9]*')
m_version=$(curl -i -H 'Authorization: Bearer $TOKEN' https://mm.beispiel.de:/api/v4/config/client?format=old 2>/dev/null | grep '^{' | jq -r '.BuildNumber')

Works!